e.g. "/Applications/Second Life.app/Contents/MacOS/Second Life" -url secondlife://Caledon/128/128/64

in the Terminal, that is, if you were not aware

--url

ack

Either should work, actually (but neither does for me).

it getting url from safari, tho

Aha! I've got it! There is stuff in the default arguments.txt file which is being added after the -url, and it doesn't like it.

doesn't think it's really necessary mind you.

works from arguments.txt

viewer adding parameters from there in the end of line

It looks like arguments.txt is appended after it, yes. So I will have to temporarily rename arguments.txt.

mhh, gonna look in code

sees that gridargs.dat on Linux does not interfere in this way....